Resilient base for machines



Jan. 12, 1960 R. R. LUXFORD RESILIENT BASE FOR MACHINES Filed Oct. 29, 1956 36I/Z 22% L20 A M EL M 54 '54 2 52 Fig. 2

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INVENTOR. ROBERT R. LUXFORD I ATTORNEY United States Patent ,0

RESILIENT BASE FOR MACHINES Robert R. Luxford, La Crosse, Wis.

Application October 29, 1956, Serial No. 618,780

6 Claims. (Cl. 248-22) This invention relates to support bars for holding a machine in adjusted position on a stand or table.

It is an object of this invention to provide a support bar which is easily clamped in adjusted position on a stand.

It is another object of the invention to provide a support bar having retainers which may be moved along a frame and clamped in adjusted position to accommodate machines with various spacings between feet.

Other objects and advantages of the invention will become apparent as the specification proceeds to describe the invention with reference to the accompanying drawings in which:

Fig. 1 is a plan view of the support bar of my invention secured to the top of a stand;

Fig. 2 is a side elevational view of the support bar secured to a stand;

Fig. 3is an end view of the support bar;

' Fig. 4is a bottom plan view of a retainer;

Fig. 5 is a side view of the retainer in upside down position; and

Fig. 6 is a sectional view taken on line 66 of Fig. 4.

Numeral 10 designates the top of a machine stand or table. Two tracks 12 are clamped at the desired position on the stand top 10. Each track 12 is substantially identical to the other track 12- and has at one end a downwardly extending hook portion 14 shaped to fit the edge of the top 10 and terminating in two spaced downwardly inclined inturned flanges 16 adapted to extend under the top 10. The other end of the track 12 has an upwardly extending flange 18 with a hole therethrough for receiving a bolt 20. A nut 22 is threaded on the bolt 20 and may be tightened to draw the tracks 12 toward each other thus forcing the hook portions 14 against the opposite edges of the top 10. The track 12 is generally channel shaped in cross-section and has a web 24 and flanges 26. The flanges 26 have inwardly extending rails 28. The web '24 of the track 12 has a 'tab 30 which engages with one flange 26 and the web 24 of the other track 12 to hold the two assembled tracks 12 in substantial alignment.

A retainer 32 is slidably supported on rails 28 of each track 12. Retainer 32 has upwardly extending flanges 34 along two adjacent sides and upwardly extending flanges 36 along the other two adjacent sides. The flanges 34 are higher than the flanges 36 and are arranged to extend along the outside of the machine base. A resilient pad 38 is mounted on the retainer 32 within the confines of the flanges 34 and 36. The pad 38 is preferably of felt but it may be soft rubber or other deformable material. When the machine to be supported has a base with resilient feet the peds 38 may be removed if desired. A clamp 40 is pivotally secured to retainer 32 by a rivet 41. Clamp 40 has an arm. 42 extending beyond the edge of retainer 32. Arm 42 has a flange 44 the inner end of which extends downwardly in the spaces between ridges 46 on the retainer 32. The retainers 32 may be removed from the tracks 12 and the material of the arm 42 is sufiiciently resilient to permit the flange 44 to be forced from the space between any two ridges 46 over one of the ridges to a position at the outside of the ridge 46. When the flange 44 is between the ridges 46 and when it is outside of one of the ridges it is freely movable through a small angle. The clamp 40 therefore has eight positions of angular adjustment about the pivot 42. When the flange 44 is between two-of the ridges 46, the cams 48 are in forced engagement with the flanges 26 of the tracks 12 to hold the retainer'32 in adjusted position on the track. The earns 48 contact a small radius between flanges 26 and rails 28 to force the retainer downwardly against the top surfaces of the rails 28. There are ridges 45 on the under surface of retainer 32 which enter grooves 47- in the upper surface of the rails 28 to provide positive locking and prevent accidental movement of the retainer 32 when it is clamped to the track 12. I

When the arm 42 is forced into a position such that the inner end of flange 44 is at the outside of one of the ridges 46, the cams 48 are pivoted away from engagement with the flanges 26, and the retainer 32 is freely slidable along the track 12 for adjustment. In this position of adjustment of the arm 42, the retainer 32 may be removed from the track 12 and turned through 180 so that the arm 42 extends toward the middle of the table. Thus for wide spacings of theretainers 32, the arms 42 do not extend beyond the confines of the table 10'. The flange 44 has a wide portion 50 which is engaged by finger in moving the clamp 40.

The tracks 12 have elongated downwardly embossed portions 52 which serve to locate resilient pads 54 which are preferably made of felt and fastened to the tracks 12 by a suitable adhesive.

Although I have shown and described a specific embodiment of my invention, it is contemplated that various changes may be made without departing from the scope or spirit of my invention and I desire to be limited only by the claims.

I claim:

1. A support bar adapted to support a machine in position on a table comprising, two elongated tracks channel shaped in cross-section, means for adjustably securing said tracks to each other at their inner ends, said tracks having downwardly extending hook portions at their outer ends for engaging the edges of a table, a retainer on each of said tracks, a clamp pivotally mounted on each of said retainers, and means on each of said clamps engageable with said tracks to secure said retainer on said tracks.

2. A support bar adapted to be secured to a table comprising. two elongated channel shaped tracks having at their outer ends downwardly extending hook portions adapted to engage the edge of a table, means for adjustably securing said tracks to each other at their inner ends, means on each track overlapping the other track to hold said tracks in substantial alignment, retainers adapted to support the feet of a machine, said retainers being adjustably mounted on said tracks, means on said retainers in frictional engagement with said tracks, and resilient means secured to the under side of said tracks and adapted to support said tracks on the top surface of a table.

3. A support bar adapted to support a machine in position on a table comprising two elongated tracks channel shaped in cross-section and having at their outer ends downwardly extending hook shaped portions adapted to engage the edges of a table, means for securing said tracks to each other at their inner ends, retainers adapted to support'the feet of a machine, clamps pivotally mounted on said retainers and being movable to and from a position of engagement with'the flanges of said elongated tracks and detent means on said retainers to receive and to hold said clamps in,positions of engagement with said" tracks.

4. A, support bar adapted'to support a machine in position on a table "comprising two elongated tracks havingtat'their outer vends downwardly extending hoflok shaped portions adapted to engage .the edges vof a table, means at the inner ends ofvsaid tracks for securing said tracks in end to end relationship, said tracks being chan nel shaped in cross-section andeach having a' web and upwardly extending longitudinal flanges, means extending'from the inneri'end of the web of each track and engaging one of saidfianges of ithe other track to .hold' said tracks in substantial alignment and retainers secured to said tracks, said retainers having upwardly extending flanges .and being adapted to support the feet of a machine between the'flanges.

5. A support bar adapted to support a machine in position on a table compr'ising'two elongated tracks hav ing at'their outer ends downwardly extending hook shaped portions adapted to engage the edges of a table, means at the inner ends of saiditracks for securing said tracks in end to end relationship, said tracks being channel shaped in cross-section and each having a web and. upwardly extending longitudinal flanges, retainers having base portions supported on the flanges of said tracks and having upwardly extending flanges, said retainers being adapted to support the feet of a machine on the base portions between the flanges, means pivotally mounted on the base portions of said retainers and pivotally movable to a position in clamping engagement with the flanges of said tracks, and means extending downwardly 'from the base portions of said retainers and extending between the flanges of said tracks to hold said retainers in axial alignment with said tracks.

6. A support bar adapted to support a machine in position on a table comprising two elongated tracks having at their outer ends downwardly extending hook shaped portions adapted to engage the edges of a table, means at the inner ends of said tracks for securing said tracks in end to end relationship, said tracks being channel shaped in cross-section and each having a web and upwardly extending flanges having terminal portions extending toward each other, retainers having a base portion supported on the terminal portions of the upwardly extending flanges of said tracks, said retainers having upwardly extending flanges and being adapted to support the base of a machine, clamps pivotally secured to the base portions of the retainers, ridges extending downwardly from the base portion of said retainers and exending between the terminal portions of the flanges of said tracks to hold said tracks in axial alignment with said tracks, cams on said clamps, said cams extending between the webs of said tracks and the terminal portions of the-flanges of said tracks and adapted to engage the flanges of said'tracks upon pivotal movement of said clamps, and means on said clamps extending between said ridges to resiliently releasably hold said clamp in adjusted, position.

References Cited in the file of this patent UNITED STATES PATENTS 

